A 500 g ball dropped from a height of 20 m hits the ground and rebounds to a height of 5 m. What is the magnitude of the impulse delivered by the ground to the ball? ()

Answer and explanation

Correct answer: C.

Speed just before impact: downwards. Speed just after rebound: upwards. Impulse .

Practise more Physics: Mechanics, Waves and Thermodynamics.

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